System and safety method for the care of the elderly, sick, children and babies, applicable in beds, cots, chairs and the like, characterized because it comprises at least: - a pressure sensing device (100), configured to be installed between a mattress, cushion or the like and a bed base or base of a plurality of beds, cradles, chairs or the like, wherein the pressure sensing device (100) comprises: - a male push element (1, 1'), with the possibility of sliding inside a slit in a female element (2), in such a way that it transfers a thrust pressure, directly proportional to the weight that the element supports push male (1, 1') when a user leans on it; - a female element (2) comprising: - an interconnection point (7) configured to allow connection with a central control unit (200), - at least one micro-switch (5) or a force transducer with strain gages (6) or a resistive force sensor (3), configured to convert the pressure exerted on them by the male push element (1,1'), at different levels of electrical voltage, - at least one suspension spring (4), responsible for supporting the male push element (1, 1') suspended on the spring (4) itself, - a central control unit (200), configured to receive a variable electrical voltage signal from the pressure detecting device (100) and determine the time the user is supported on the male push element (1 1'), where the central control unit (200) comprises: - a courtesy lighting lamp (16), which is activated when the central control unit (200) detects that the user stops pressing on the male push element (1, 1'), - a multiple warning actuation circuit (15), which when the central control unit (200) detects that the user stops making pressure in the push element (1, 1') and has passed a pre-established time in a memory control circuit (12), activates at least one acoustic indicator (17), a remote control activator transmitter (18), a remote assistance means activating transmitter (19), a WPAN communication circuit and/or WLAN (20) or an output circuit for telephone warder (21), - at least one power supply and a rechargeable buffer battery, to power these circuits electrically, - an enclosure, electrically insulating housing, which externally incorporates the courtesy lighting lamp (16) and internally contains at least all these circuits. - a remote single alert unit (300), configured to send acoustic or visual signals from signals received wirelessly from the central control unit (200). (Machine-translation by Google Translate, not legally binding)
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